Simulation and Control Design of a Railway Vehicle Tilting System using Differential Pulse Width Modulation Control of Air Springs

1996 ◽  
Vol 25 (sup1) ◽  
pp. 340-358 ◽  
Author(s):  
R. KIRAT
Keyword(s):  
Pulse Width ◽  
Pulse Width Modulation ◽  
Control Design ◽  
Differential Pulse ◽  
Railway Vehicle ◽  
Simulation And Control ◽  
Modulation Control ◽  
And Control

scholarly journals Easy-Riding Compact Electric Shopping Vehicle

2021 ◽  
Vol 33 (5) ◽  
pp. 1178-1189
Author(s):  
Takeharu Hayashi ◽  
Yoshihiko Takahashi ◽  
Satoru Yamaguchi ◽  
◽  
Keyword(s):  
Electric Power ◽  
Electric Vehicle ◽  
Pulse Width ◽  
Pulse Width Modulation ◽  
Standing Position ◽  
Power Source ◽  
Sitting Position ◽  
Speed Controller ◽  
Experimental Vehicle ◽  
Modulation Control

We are developing a small compact electric vehicle for shopping purposes. In this study, we fabricated an experimental vehicle, that uses only six small rechargeable AA batteries (7.2 V, approximately 2 A·h) as an electric power source. The vehicle user can select between two driving positions: standing and sitting. A compact transmission with a 90-W DC motor and a speed controller that uses pulse width modulation control was designed as an actuating system. Running experiments were conducted to observe the performance of the fabricated vehicle on a flat floor in a gymnasium. The fabricated vehicle was able to operate for 52 min at a speed of 2.73 km/h. The getting-on and getting-off processes in the vehicle were repeated many times during shopping. The human leg strain while getting on and off the vehicle was investigated by electromyogram measurement. During the getting-on and getting-off processes in the vehicle, the myoelectric potential of the quadriceps increased in the sitting position but did not increase in the standing position. The experimental results show that a user suffers more strain in the sitting position than in the standing position.

scholarly journals DIGITAL AND PULSE-WIDTH CONTROL OF A SPACE ROBOT WHEN APPROACHING A GEOSTATIONARY SATELLITE

2020 ◽  
Vol 22 (5) ◽  
pp. 74-78
Author(s):  
Ye.I. Somov ◽  
◽  
S.A. Butyrin ◽  
S.Ye. Somov ◽  
◽  
...  
Keyword(s):  
Pulse Width ◽  
Electric Propulsion ◽  
Pulse Width Modulation ◽  
Geostationary Satellite ◽  
Space Robot ◽  
Control Algorithms ◽  
Control Problems ◽  
Guidance And Control ◽  
Gyroscopic Moment ◽  
And Control

The control problems on a space robot during its approach to an information geostationary satellite are considered. The robot motion control system uses an electric propulsion system with 8 engines at the pulse-width modulation of their thrust values and a gyroscopic moment cluster based on 4 gyrodines with digital control. Numerical results are presented that demonstrate the effectiveness of the developed discrete guidance and control algorithms.

Space vector pulse width modulation control techniques for a five‐phase quasi‐impedance source inverter

2017 ◽  
Vol 12 (3) ◽  
pp. 379-387 ◽  
Author(s):  
Ahmad Anad Abduallah ◽  
Mohammed Meraj ◽  
Mohammed Al‐Hitmi ◽  
Atif Iqbal
Keyword(s):  
Pulse Width ◽  
Pulse Width Modulation ◽  
Space Vector ◽  
Control Techniques ◽  
Modulation Control

Investigation on adaptive pulse width modulation control for high speed on/off valve

2020 ◽  
Vol 34 (4) ◽  
pp. 1711-1722
Author(s):  
Qiang Gao ◽  
Yuchuan Zhu ◽  
Zhang Luo ◽  
Niyomwungeri Bruno
Keyword(s):  
Pulse Width ◽  
High Speed ◽  
Pulse Width Modulation ◽  
Modulation Control

A Pulse Width Modulation Control Scheme for Three-Way Catalyst Systems

2010 ◽  
Vol 43 (7) ◽  
pp. 111-116
Author(s):  
James C. Peyton Jones ◽  
Kenneth. R. Muske ◽  
Robert. W. Schallock ◽  
Jevon. M. Avis
Keyword(s):  
Pulse Width ◽  
Pulse Width Modulation ◽  
Control Scheme ◽  
Modulation Control ◽  
Catalyst Systems ◽  
Three Way Catalyst

scholarly journals Performance analysis of a high-speed on/off valve based on an intelligent pulse-width modulation control

2017 ◽  
Vol 9 (11) ◽  
pp. 168781401773324 ◽  
Author(s):  
Qi Zhong ◽  
Bin Zhang ◽  
Hua-Yong Yang ◽  
Ji-En Ma ◽  
Rong-Fong Fung
Keyword(s):  
Performance Analysis ◽  
Pulse Width ◽  
High Speed ◽  
Pulse Width Modulation ◽  
Modulation Control
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